- 1. Building dams is a crucial engineering feat that involves constructing barriers across rivers or streams to control and manage water flow. Dams serve multiple purposes, including providing hydroelectric power, regulating water supply for irrigation and drinking water, preventing floods, and supporting navigation. The process of building a dam requires careful planning, design, and construction to ensure its stability and effectiveness. Environmental impact assessments must also be conducted to evaluate and mitigate any potential negative effects on the surrounding ecosystem and wildlife. Overall, building dams requires a combination of engineering expertise, environmental considerations, and effective management to successfully meet the water-related needs of a region.
Which type of dam relies on the force of gravity to hold back water?
A) Embankment dam.
B) Arch dam.
C) Gravity dam.
D) Barrage dam.
- 2. Which material is commonly used to construct dams due to its strength and durability?
A) Bamboo.
B) Plastic.
C) Wood.
D) Concrete.
- 3. What is the process of water passing over or through a dam called?
A) Spillway.
B) Inundation.
C) Leakage.
D) Siphoning.
- 4. What environmental impact can dams have on rivers?
A) Enhancing natural habitats.
B) Boosting local biodiversity.
C) Reducing water pollution.
D) Disrupting fish migration.
- 5. Which type of dam is typically built in a narrow canyon or valley?
A) Arch dam.
B) Embankment dam.
C) Gravity dam.
D) Buttress dam.
- 6. What can a dam failure lead to?
A) Flooding downstream.
B) Improved soil fertility.
C) Increased wildlife population.
D) Enhanced water quality.
- 7. Which country is home to the famous Hoover Dam?
A) China.
B) Russia.
C) United States.
D) Brazil.
- 8. What is the purpose of a spillway on a dam?
A) To filter out debris.
B) To generate additional power.
C) To release excess water safely.
D) To store emergency supplies.
- 9. Which type of dam is constructed using earth or rock fill?
A) Buttress dam.
B) Embankment dam.
C) Gravity dam.
D) Arch dam.
- 10. Which important factor must be considered before constructing a dam in a specific location?
A) Historical significance
B) Proximity to urban areas
C) Aesthetic appeal
D) Geological feasibility
- 11. Which term refers to the walls that confine the sides of a dam?
A) Buttresses
B) Spillways
C) Abutments
D) Piers
- 12. What safety measures are put in place to detect dam deformation?
A) Weather vanes.
B) Decorative lights.
C) Water purifiers.
D) Monitoring instruments.
- 13. What is a common method of stabilizing a dam against potential failure due to seepage?
A) Grouting
B) Ignoring the issue
C) Covering with plants
D) Removing the dam
- 14. What is the term for the process of filling a reservoir behind a dam?
A) Impoundment.
B) Evaporation.
C) Erosion.
D) Condensation.
- 15. What is an essential consideration in dam safety management?
A) Building taller dams
B) Ignoring warning signs
C) Regular maintenance and inspections
D) Fast-tracking construction
- 16. Which engineering discipline is involved in designing dams?
A) Aerospace engineering.
B) Civil engineering.
C) Biomedical engineering.
D) Mechanical engineering.
- 17. What is the primary advantage of hydroelectric power generated by dams?
A) Non-renewable energy.
B) Polluting energy.
C) Renewable energy.
D) Expensive energy.
- 18. What is the practice of removing a dam to restore a river's natural flow called?
A) Dam removal.
B) Dam reinforcement.
C) Dam retrofitting.
D) Dam expansion.
- 19. Which organization provides guidelines for safe dam construction practices?
A) United Nations Educational, Scientific and Cultural Organization (UNESCO)
B) International Commission on Large Dams (ICOLD)
C) Greenpeace
D) World Health Organization (WHO)
- 20. Which dam attribute affects the amount of energy that can be generated?
A) Dam color.
B) Height of the dam.
C) Location of the dam.
D) Age of the dam.
- 21. Which country has the largest dam based on power generation capacity?
A) China
B) USA
C) India
D) Brazil
- 22. Which type of dam uses a series of supports on the downstream side?
A) Buttress dam.
B) Gravity dam.
C) Arch dam.
D) Embankment dam.
- 23. What can be a consequence of damming a river?
A) Increasing erosion.
B) Inducing droughts.
C) Creating wetlands.
D) Altering sediment transport.
- 24. What is the term for the process of collecting sediment in a reservoir behind a dam?
A) Condensation
B) Erosion
C) Desalination
D) Siltation
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